We know that first oozie runs a hadoop job and using that job it runs other hadoop applications. So I want to find the list of those hadoop applications (eg. application_231232133) ran by oozie (hadoop) job. Currently there is no such api or command.
If you're using Oozie 5.0 or higher then the application type of those jobs is "Oozie Launcher", not "MapReduce" so they are easy to filter out.